Herb's sure about foreign ways and is sorry (4)

I believe the answer is:

rues

I'm a little stuck... Click here to teach me more about this clue!

'is sorry' is the definition.
(I've seen this before)

'herb's sure about foreign ways' is the wordplay.
'sure' can be anagrammed to 'RUES'.
Though, I am unsure how the anagram is indicated.

'and' acts as a link.

Can you help me to learn more?

(Other definitions for rues that I've seen before include "Regrets, to be sure" , "Is sorry for - plants" , "Bemoans" .)

I've seen this clue in The Globe and Mail.

Want a hint initially instead of a full solution? Install my app